Standard Vent Arrangement, Vent Assembly

STANDARD VENT ARRANGEMENT

VENT ASSEMBLY

SECURING VENT TERMINATION ASSEMBLY TO THE EXTERIOR WALL.

UNCOMPRESSING THE CORRUGATED TUBING

VENT RESTRICTER PLATE

186589-004, GDVT-50, GDV-75, GDV-40, GDV-50 specifications

2.1 in. (54.5mm)

FIGURE 17

*If the horizontal distance is less than 760mm (30 in.), the restricter plate must be installed (see Figure 22).

The vent tube and terminal can be assembled as shown in Figure 18. There are springs fastened inside the corrugated tube. When the vent tubes are pulled to a required length, the springs will still be equally spaced.

SPRINGCLAMP

FIGURE 18

Some models are supplied with trim plates which may be used to cover the holes in the wall (see Figures 1 and 19). Slide one trim plate (if supplied) over the outer corrugated tube, then insert the outer corrugated tube through the clearance hole from exterior wall. Secure the trim plate to the exterior wall, then secure the vent terminal to the exterior wall with 4 screw anchors (included) appropriate for the type of wall construction. Caulk the junction of the vent terminal base plate and the exterior wall with exterior type sealant (not included). Slide the trim plate (inside) over the outer corrugated tube and fasten the trim plate to the interior wall. Caulk the junction of the outer corrugated tube and the trim plate (inside) with suitable sealant.

TRIM PLATE
(INSIDE)	SEALANT

TRIM PLATE (OUTSIDE)

FIGURE 19

1.Pull the inner corrugated tube towards the water heater and leave some length over the water heater’s center for bending.

2.Pull the outer corrugated tube toward the water heater and leave it 25mm (1 in.) shorter than the inner corrugated tube.

3.Make sure there are two springs evenly spaced at the bend in the tube.

4.Use metal hangers to keep venting level or with a slope upward from the heater to terminal.

SPRING

REDUCER

FIGURE 20

Bend both the corrugated tubes toward the water heater’s ﬂue connection.

FIGURE 21

For short horizontal vent runs (see Figure 17) place the restricter plate over the ﬂue tube reducer before connecting the inner cor- rugated tube to the ﬂue tube reducer. DO NOT use the restricter plate if the horizontal run is greater than 760mm (30 in.).

UPPER AIR	RESTRICTER
INLET BOX	PLATE

FLUE TUBE

REDUCER

FIGURE 22

Pull and connect the inner corrugated tube to the water heater’s ﬂue tube reducer with hi-temp red silicone (included) and gear clamp. Make sure this connection is tight and leak proof.

*The sealant between inner corrugated tube and water heater’s ﬂue tube reducer must be hi-temp red silicone or other material suitable for 315°C (600°F) continuous service.

17 in. (432mm) MIN.,*

80 in. (2.03m) MAX.

A.O. Smith is a recognized name in the water heating industry, known for its reliable and efficient water heaters. Among its notable products are the GDV-50, GDV-40, GDV-75, GDVT-50, and 186589-004 models. These water heaters offer enhanced performance, energy efficiency, and modern technologies suited for residential and commercial applications.

The GDV series includes the GDV-50, GDV-40, and GDV-75 models, which feature a robust design typically made from high-quality materials to ensure longevity. These units come equipped with advanced insulation, which minimizes heat loss and increases efficiency, making them excellent choices for households with varying hot water needs.

The GDV-50 model boasts a tank capacity of 50 gallons, making it suitable for medium to large households. It features a powerful heating element that heats water quickly, providing ample hot water for daily use. Meanwhile, the GDV-40 is designed for smaller households with a 40-gallon capacity. This model strikes a balance between size and efficiency, catering to lighter hot water demands while maintaining excellent performance.

For larger households, the GDV-75 provides a 75-gallon capacity, ensuring that even the most demanding hot water applications can be met with ease. This model is particularly ideal for families that require hot water in large quantities or at peak times.

The GDVT-50 is a versatile model that features advanced technology, such as an integrated digital display that allows users to monitor and adjust settings easily. This offers greater control over temperature settings and energy usage, making it not only convenient but also more energy-efficient.

The A.O. Smith 186589-004 is an accessory designed for specific model enhancements that improve overall performance and safety. It may include additional safety features, such as high-temperature limit switches and automatic shut-off mechanisms that provide peace of mind for users.

All these models are equipped with A.O. Smith’s innovative technologies, including advanced thermostat controls and durable components designed to withstand frequent use. They typically come with generous warranties, underscoring the manufacturer's commitment to quality and customer satisfaction.

In summary, A.O. Smith water heaters, particularly the GDV-50, GDV-40, GDV-75, GDVT-50, and 186589-004, are built for efficiency, reliability, and performance. With various capacities and the latest technologies, they cater to the diverse needs of homeowners and businesses, ensuring that hot water is always available when needed.